11. Maintenance
Maintenance and repairs
For safety some maintenance procedures require the unit or
product to be shut
down electrically or / and hydraulically isolated. Please refer to
chapter 9.3 Shut- down procedure
It is forbidden to alter or use non-original components or
replacement parts without
authorisation. Such acts may result in serious personal injury and
endanger operational safety. They will also render any claim for
damages against product liability void.
The pressurisation equipment must be taken out of service and
guarded against
unintentional restarting until the maintenance work is finished.
Note that the safety circuits and data transmissions made whilst
shutting down
could trigger the safety chain or lead to false information to a
connected BMS.
Existing instructions for the heating or cooling unit as a whole must
be observed.
To stop hydraulic components, block the relevant sections and
drain them using the
available drain connections, and relieve the pressure.
11.1. Maintenance procedure
The following maintenance procedures should be performed at least once a year:
Check current status
1.Check that controller has no alarms
2.Check that the pressure reading on the digital display corresponds
to the actual
system pressure (read off another gauge)
3. Check for signs of leakage (e.g. water, mineral deposits, corroded
components/ cabinet)
4. Check flexible hoses for signs of degradation (e.g. cracks)
Check the controller menu (see 9.2 Normal operation)
1.Check Safety Valve setting matches actual valve on system
2.Record the Set Pressure and is it suitable for system height.
(=10m per bar + 0.3bar)
3.Test run the pump/s for a few seconds
4.Record Pump Hours
5.Record Number of alarms
Note: If the alarm count is high check chapter 10 troubleshooting for
possible faults.
Make the unit Safe
Follow chapter 9.3 Shut-down procedure, then continue with the
steps below.
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